Skip to content
体验新版
项目
组织
正在加载...
登录
切换导航
打开侧边栏
小白菜888
Ffmpeg
提交
360d33c9
F
Ffmpeg
项目概览
小白菜888
/
Ffmpeg
通知
3
Star
0
Fork
0
代码
文件
提交
分支
Tags
贡献者
分支图
Diff
Issue
0
列表
看板
标记
里程碑
合并请求
0
DevOps
流水线
流水线任务
计划
Wiki
0
Wiki
分析
仓库
DevOps
项目成员
Pages
F
Ffmpeg
项目概览
项目概览
详情
发布
仓库
仓库
文件
提交
分支
标签
贡献者
分支图
比较
Issue
0
Issue
0
列表
看板
标记
里程碑
合并请求
0
合并请求
0
Pages
DevOps
DevOps
流水线
流水线任务
计划
分析
分析
仓库分析
DevOps
Wiki
0
Wiki
成员
成员
收起侧边栏
关闭侧边栏
动态
分支图
创建新Issue
流水线任务
提交
Issue看板
体验新版 GitCode,发现更多精彩内容 >>
提交
360d33c9
编写于
5月 25, 2002
作者:
F
Fabrice Bellard
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
update
Originally committed as revision 589 to
svn://svn.ffmpeg.org/ffmpeg/trunk
上级
773a21b8
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
22 addition
and
29 deletion
+22
-29
doc/README.tech
doc/README.tech
+14
-11
doc/TODO
doc/TODO
+8
-18
未找到文件。
doc/README.tech
浏览文件 @
360d33c9
...
...
@@ -27,20 +27,23 @@ Video:
vectors. Currently, only fcode = 1 is used for both H263/MPEG1. Half
pel vectors are used.
I also plan to improve the bitrate control which is too simplistic.
Audio:
-----
-
I rewrote the mpeg audio layer 2 compatible encoder from scratch. It
is one of the simplest encoder you can imagine (800 lines of C code
!). It is also one of the fastest because of its simplicity. There
are still some problems of overflow. A minimal psycho acoustic mode
l
could be added. Currently, stereo is supported, but not joint
stereo.
-
The mpeg audio layer 2 compatible encoder was rewritten from
scratch. It is one of the simplest encoder you can imagine (800
lines of C code !). It is also one of the fastest because of its
simplicity. There are still some problems of overflow. A minima
l
psycho acoustic model could be added. Currently, stereo is
s
upported, but not joint s
tereo.
-
I rewrote the AC3 audio encoder from scratch. It is fairly naive,
but the result are quiet interesting at 64 kbit/s. It includes
extensions for low sampling rates used in some Internet
-
The AC3 audio encoder was rewritten from scratch. It is fairly
naive, but the result are quiet interesting at 64 kbit/s. It
includes
extensions for low sampling rates used in some Internet
formats. Differential and coupled stereo is not handled. Stereo
channels are simply handled as two mono channels.
- The mpeg audio layer 3 decoder was rewritten from scratch. It uses
only integers and can be 16 bit precision for the synthesis filter
at the expense of a slight precision loss. A slower bit exact mode
is available too for compliance testing.
doc/TODO
浏览文件 @
360d33c9
...
...
@@ -3,26 +3,16 @@ ffmpeg TODO list:
(in approximate decreasing priority order)
Short term glantau's fixes:
- regression tests (done).
- mpeg1/2 decode fix (unfortunately not much speed increase) (done)
- fix WORDS_BIGENDIAN issue (done)
- remove win project files (done)
- remove sub_xxx functions (done)
- mpeg2 transport stream support (decoding done)
- improved auto guess for formats (api change again in demux) (done)
- fix mpeg format tracking + handle frame rate change (done)
- suppress strlcpy (done)
- split mux/demux functions. (done)
- use av_new_stream() (partially done)
Short term fixes:
- mpeg audio fix
- ffserver fix
- fix stream selection (aka map) syntax. Start stream numbers at 1 in
listing. Find a syntax for stream ids (such as TS pids).
- reconstruct mpeg header frame rate in telecine case so that we do
not need to i
fn
er the real rate if it is not possible.
not need to i
nf
er the real rate if it is not possible.
- remove unused DCT code.
- mpeg audio fix
- AV sync fix (new api for demux)
- RTP streaming support in ffserver
- AV sync fix
- RTP/RTSP streaming support in ffserver and in libav
- minimal support of video in ffplay
Planned in next releases:
...
...
编辑
预览
Markdown
is supported
0%
请重试
或
添加新附件
.
添加附件
取消
You are about to add
0
people
to the discussion. Proceed with caution.
先完成此消息的编辑!
取消
想要评论请
注册
或
登录